Zeckendorf Towers
Multifamily Housing in New York City, NY · 10 Union Square E. · 10003
At a glance
Zeckendorf Towers is a 989,722-square-foot multifamily housing building at 10 Union Square E. in New York City, New York, built in 1988. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 106.3 kBtu/ft² and 9,748 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 106.3 kBtu/ft² |
| Source EUI | 220.3 kBtu/ft² |
| GHG emissions | 9,748 tCO₂e |
| GHG intensity | 9.8 kgCO₂e/ft² |
| Electricity | 16,871,860 kWh |
| Natural gas | 30,558 therms |
| Water use | 43,751 kgal |
| Gross floor area | 989,722 sq ft |
| Source record | nyc:8461300:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 106.3 kBtu/ft² | 9,748 tCO₂e | |
| 2023 | — | 119.3 kBtu/ft² | 10,580 tCO₂e | |
| 2022 | — | 110.6 kBtu/ft² | 8,270 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 10 Union Square E.
- City
- New York City
- State
- New York
- ZIP
- 10003
- Coordinates
- 40.73470, -73.98993
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Zeckendorf Towers compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 106.3 kBtu/ft² is about 42% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 9.8 kgCO₂e/ft² is about 89% above the group average of 5.2 kgCO₂e/ft².
At 989,722 sq ft, it is about 880% above the average floor area of 100,951 sq ft for those buildings. It was built in 1988, 36 years later than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Zeckendorf Towers's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Zeckendorf Towers, covering report years 2022–2024. Site EUI moved from 110.6 kBtu/ft² (2022) to 106.3 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 8,270 tCO₂e to 9,748 tCO₂e over the same span (up 18%).
What does a site EUI of 106.3 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Zeckendorf Towers's 106.3 kBtu/ft² across 989,722 sq ft works out to about 105.2 billion Btu (30,833 MWh-equivalent) in 2024. Its source EUI of 220.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 16,871,860 kWh of electricity, 30,558 therms of natural gas and 43,751 thousand gallons of water for the year.
Which law requires Zeckendorf Towers to report its energy use?
Zeckendorf Towers reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:8461300:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More multifamily housing buildings in New York City
- DEPM 2492 - 330 East 38th Street· 989,547 sq ft · score 25 (D)
- RY - Tracy Towers· 987,101 sq ft · score 17 (D)
- River Crossing Owner LLC (2172)· 986,395 sq ft · score 74 (B)
- TILDEN· 986,300 sq ft · score 14 (D)
- 270 Greenwich Street· 985,829 sq ft · EUI 67.7 kBtu/ft²
- United Veterans Mutual Housing· 984,940 sq ft · score 51 (D)
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is Zeckendorf Towers's energy grade?
Zeckendorf Towers did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 106.3 kBtu/ft².
How much energy does Zeckendorf Towers use?
Its 2024 site energy-use intensity was 106.3 kBtu/ft² (220.3 kBtu/ft² source) across 989,722 sq ft, including 16,871,860 kWh of electricity and 30,558 therms of natural gas.
What are Zeckendorf Towers's carbon emissions?
Zeckendorf Towers reported 9,748 tCO₂e of greenhouse-gas emissions (9.8 kgCO₂e/ft²) for 2024.
Where is Zeckendorf Towers?
Zeckendorf Towers is at 10 Union Square E., in New York City, New York 10003. Its coordinates are 40.73470, -73.98993 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Zeckendorf Towers and when was it built?
Zeckendorf Towers has 989,722 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as multifamily housing.
Is Zeckendorf Towers covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Zeckendorf Towers, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/zeckendorf-towers-11d770da (data as of October 2, 2026).